1H-indol-6-ol

C8H7NO

CAS2380-86-1
GHS07 Gefahrensymbol: Gesundheitsschädlich/Reizend – Ausrufezeichen
GHS05 Gefahrensymbol: Ätzend – Ätzwirkung
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
Danger

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Identification

CAS Number
2380-86-1
EC Number
417-020-4
UN Number
3077
Index Number
613-218-00-1
PubChem CID
524508

Physical-chemical properties

Molecular Formula
C8H7NO
Molar Mass
133.15 g/mol
IUPAC Name
1H-indol-6-ol

Chemical Identifiers

InChI
InChI=1S/C8H7NO/c10-7-2-1-6-3-4-9-8(6)5-7/h1-5,9-10H
InChI Key
XAWPKHNOFIWWNZ-UHFFFAOYSA-N

Overview

1H-indol-6-ol (CAS 2380-86-1) is an indole derivative compound with hydroxyl functionality at the 6-position of the indole ring system. This heterocyclic organic compound belongs to the indole family, characterized by its benzopyrrole structure with a hydroxyl group substitution. With the molecular formula C8H7NO and a molecular weight of 133.15 g/mol, 1H-indol-6-ol exhibits both aromatic and phenolic properties due to its unique structural features. The compound is also identified by its EC number 417-020-4 and represents an important building block in organic synthesis and pharmaceutical chemistry. From a safety perspective, 1H-indol-6-ol requires careful handling as it is classified under several hazard categories including acute toxicity (Category 4), serious eye damage (Category 1), skin sensitization (Category 1), and chronic aquatic toxicity (Category 2). The substance displays GHS pictograms GHS07, GHS05, and GHS09, with "Danger" as the signal word, indicating significant health and environmental hazards. Transportation falls under ADR Class 9 for miscellaneous dangerous substances. The compound finds applications in pharmaceutical intermediate synthesis, particularly in the development of bioactive molecules and drug discovery programs. It serves as a valuable precursor in the synthesis of more complex indole-based compounds and is utilized in research applications involving neurochemistry and medicinal chemistry. Unlike structurally different compounds such as 1-[3-(4-fluorophenoxy)propyl]-3-methoxypiperidin-4-one, 1H-indol-6-ol maintains the characteristic indole scaffold while offering specific reactivity through its phenolic hydroxyl group. OYSI provides 1H-indol-6-ol to European customers requiring high-quality chemical intermediates for research and industrial applications.

Safety & Classification

Danger
Classification:

Acute Tox. 4 *; Eye Dam. 1; Skin Sens. 1; Aquatic Chronic 2

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H302

Harmful if swallowed.

H318

Causes serious eye damage.

H317

May cause an allergic skin reaction.

H411

Toxic to aquatic life with long lasting effects.

Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).

First Aid Measures

Skin Contact

Irritant

Measures if substance contacts the skin

First Aid Actions

  • +P302IF ON SKIN:
  • +P352Wash with plenty of water.
  • +P361Take off immediately all contaminated clothing.
  • +P313Get medical advice/attention.

Related hazard statements:

Eye Contact

Harmful

Measures if substance gets into the eyes

First Aid Actions

  • +P305IF IN EYES:
  • +P351Rinse cautiously with water for several minutes.
  • +P338Remove contact lenses, if present and easy to do. Continue rinsing.
  • +P313Get medical advice/attention.

Related hazard statements:

Ingestion

Harmful

Measures if substance is accidentally swallowed

First Aid Actions

  • +P301IF SWALLOWED:
  • +P330Rinse mouth.
  • +P331Do NOT induce vomiting.
  • +P310Immediately call a POISON CENTER/doctor.

Related hazard statements:

General Measures

Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)

First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.

Transport (ADR)

UN Number3077
ADR Class9
Packing GroupIII
Tunnel Code-
Proper Shipping Name6-Hydroxyindol
Marine PollutantNo

Frequently Asked Questions

What is 1H-indol-6-ol?

1H-indol-6-ol is an organic compound belonging to the indole family with the molecular formula C8H7NO and a molecular weight of 133.15 g/mol. This chemical substance features a hydroxyl group attached to the 6-position of the indole ring structure. It is classified as a hazardous substance with acute toxicity, eye damage, skin sensitization, and aquatic toxicity properties. The compound is assigned CAS number 2380-86-1 and requires careful handling due to its danger classification.

What are the physicochemical properties of 1H-indol-6-ol?

1H-indol-6-ol exhibits typical properties of hydroxylated indole derivatives, appearing as a solid at room temperature. The compound contains both aromatic indole structure and phenolic hydroxyl functionality, which influences its solubility characteristics. Its molecular structure with C8H7NO formula and 133.15 g/mol molecular weight determines its physical behavior. Specific properties like melting point, boiling point, and exact solubility data should be confirmed through technical documentation or safety data sheets.

What is 1H-indol-6-ol used for?

1H-indol-6-ol serves as an important intermediate in pharmaceutical and chemical synthesis applications. The compound is primarily used in research and development activities, particularly in the synthesis of more complex organic molecules and potential pharmaceutical compounds. Its indole structure makes it valuable for medicinal chemistry applications and as a building block in organic synthesis. Due to its specialized nature, it is typically used in professional laboratory and industrial settings rather than consumer applications.

How to handle 1H-indol-6-ol safely?

1H-indol-6-ol requires careful handling with appropriate personal protective equipment including safety goggles, chemical-resistant gloves, and protective clothing due to its eye damage and skin sensitization properties. Work should be conducted in well-ventilated areas or under fume hoods to minimize inhalation risks. Avoid direct skin and eye contact, and ensure emergency eyewash stations are accessible. Personnel should be trained on the substance's acute toxicity (Category 4) and sensitization potential before handling.

How to store 1H-indol-6-ol correctly?

1H-indol-6-ol should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from incompatible materials. Storage areas must be equipped with appropriate spill containment measures and restricted to authorized personnel only. Keep containers properly labeled with hazard information and ensure storage conditions prevent degradation or contamination. Regular inspection of storage containers is recommended to maintain product integrity and prevent leaks that could pose environmental risks.

What to do in case of contact with 1H-indol-6-ol?

In case of eye contact with 1H-indol-6-ol, immediately flush eyes with plenty of clean water for at least 15 minutes and seek medical attention due to its eye damage classification. For skin contact, remove contaminated clothing and wash affected area thoroughly with soap and water. If ingestion occurs, do not induce vomiting and seek immediate medical advice. In case of inhalation, move to fresh air immediately. Always consult the safety data sheet for specific first aid measures.

How to dispose of 1H-indol-6-ol appropriately?

1H-indol-6-ol waste must be disposed of through licensed hazardous waste disposal facilities in accordance with local and national environmental regulations. The compound's classification as Aquatic Chronic 2 requires special consideration to prevent environmental contamination. Waste should be collected in appropriate containers, properly labeled, and never discharged into sewers or waterways. Consult local environmental authorities for specific disposal requirements and approved waste management contractors in your region.

How to transport 1H-indol-6-ol?

1H-indol-6-ol is classified under ADR Class 9 (Miscellaneous dangerous substances), Packing Group III for transportation purposes. This classification requires appropriate packaging, labeling, and documentation during transport. Packages must bear the proper shipping name, UN number, and hazard labels according to ADR regulations. Transportation should only be conducted by qualified carriers familiar with dangerous goods regulations. Proper emergency response information must accompany shipments.

Is 1H-indol-6-ol subject to particular regulations?

1H-indol-6-ol is subject to standard chemical safety regulations including REACH registration requirements in Europe and CLP classification and labeling regulations. The substance is not currently listed as a Substance of Very High Concern (SVHC). Suppliers must provide safety data sheets and proper hazard communication. Users must comply with occupational health and safety requirements, environmental protection measures, and proper waste disposal regulations. Import/export may require additional documentation depending on destination countries.

Where to buy 1H-indol-6-ol in Europe?

1H-indol-6-ol is available through OYSI, a specialized European distributor of chemical products. OYSI provides professional-grade chemicals to research institutions, laboratories, and industrial customers across Europe. As an established chemical supplier, OYSI ensures proper documentation, safety data sheets, and regulatory compliance for all products. Contact OYSI directly for availability, specifications, packaging options, and delivery information to your specific European location.

Data Sources

Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.